So as I spend time searching. To make pixel perfect scene. It's simple.
Get the size of canvas you need give it pixel snap.
Set how to scale properrly so you don't have glitches with it.
But I need separately one part of the game to be pixel perfect.
And layer over it HD resolution sprites. How am I supposed to do this?
Is there something like I would just use camera for smaller scene and rendered it and scaled onto whole canvas?
I tried to do this with pixelation shader. It works... but. It is as the shader name.
It just pixelates. I can get unpixelated nodes over it. But under it it's still just blured pixel image.
Not pixel perfect pixel snap. If it was somehow possible. For me it would be best to do it by some shader. As it then would keep smooth light still smooth. Just converted to pixels. But I have no ide how to make shader on my own.